US6403605B1 - Methods for the normalization of sexual response and amelioration of long term genital tissue degradation - Google Patents

Methods for the normalization of sexual response and amelioration of long term genital tissue degradation Download PDF

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US6403605B1
US6403605B1 US09/086,630 US8663098A US6403605B1 US 6403605 B1 US6403605 B1 US 6403605B1 US 8663098 A US8663098 A US 8663098A US 6403605 B1 US6403605 B1 US 6403605B1
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apomorphine
drug
pharmaceutically acceptable
administered
sexual response
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Jeremy P. W. Heaton
Michael A. Adams
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Queens University at Kingston
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Queens University at Kingston
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Assigned to QUEEN'S UNIVERSITY AT KINGSTON reassignment QUEEN'S UNIVERSITY AT KINGSTON ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEATON, JEREMY P.W., ADAMS, MICHAEL A.
Priority to ARP990102489A priority patent/AR019579A1/es
Priority to AT99923347T priority patent/ATE326969T1/de
Priority to AU40272/99A priority patent/AU764009B2/en
Priority to EP99923347A priority patent/EP1082118B1/en
Priority to DE69931487T priority patent/DE69931487T2/de
Priority to ES99923347T priority patent/ES2268869T3/es
Priority to PCT/CA1999/000508 priority patent/WO1999062502A2/en
Priority to EP05025295A priority patent/EP1666040A1/en
Priority to CA002331387A priority patent/CA2331387A1/en
Priority to TW088111525A priority patent/TWI232748B/zh
Priority to HK01106459A priority patent/HK1037517A1/xx
Priority to US10/147,904 priority patent/US20030092725A1/en
Publication of US6403605B1 publication Critical patent/US6403605B1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/13—Amines
    • A61K31/135—Amines having aromatic rings, e.g. ketamine, nortriptyline
    • A61K31/137—Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine or methadone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
    • A61K31/403—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
    • A61K31/404—Indoles, e.g. pindolol
    • A61K31/405—Indole-alkanecarboxylic acids; Derivatives thereof, e.g. tryptophan, indomethacin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47—Quinolines; Isoquinolines
    • A61K31/473—Quinolines; Isoquinolines ortho- or peri-condensed with carbocyclic ring systems, e.g. acridines, phenanthridines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47—Quinolines; Isoquinolines
    • A61K31/48—Ergoline derivatives, e.g. lysergic acid, ergotamine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/498—Pyrazines or piperazines ortho- and peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P15/00—Drugs for genital or sexual disorders; Contraceptives

Definitions

  • the present application relates to pharmaceutical formulations and to medical methods of treatment. More particularly, the present invention concerns the use of a compound which acts as a central nervous system sexual response initiator for the normalization of the timing of sexual response in humans and for the prophylaxis or treatment of long-term damage to genital organ.
  • Proper sexual functioning in men and women depends upon a combination of steps including 1) establishment of the appropriate anticipatory mental set (“desire”), 2) effective vasocongestive arousal (an erection in the male sufficient for vaginal penetration and, in the female, clitoral erection, vaginal engorgement and lubrication), and 3) orgasm.
  • the timing of these steps between partners engaging in sexual relations is mediated by one or more of several compounds which act in neurological pathways in the mesencephalon or mid-brain. These pathways include those termed the serotonergic, dopaminergic, oxytocinergic, and nitroxidergic mid-brain pathways.
  • Timing of the various aspects or parameters of sexual response between partners engaging in sex is important and often mis-matched due to psychological, or sometimes biogenic, dysfunction in one or both of the partners. Even in sex partners having sexual responses deemed to fall within the norm, there is a frequent mis-match of the timing of response.
  • Orgasm in the male includes the sensation of emission followed by ejaculation.
  • the sensation of emission is one of ejaculatory inevitability and is mediated by contractions of the prostate, seminal vesicles, and urethra.
  • Orgasm in the female is accompanied by contractions of the muscles that line the wall of the outer third of the vagina. In both sexes, generalized muscular tension, perineal contractions and involuntary pelvic thrusting usually occur. Orgasm is followed by resolution, a sense of general relaxation, well-being, and muscular relaxation. During this phase men are physiologically refractory to further erection and orgasm for a variable period of time. In contrast, women may be able to respond to additional stimulation almost immediately.
  • Premature ejaculation in males may have either a psychogenic or biogenic origin in a particular individual, and various treatment methods have been suggested. These include counseling and techniques for learning control of ejaculation and the use of serotonin re-uptake inhibitors such as fluoxetine hydrochloride (Prozac®) and sertraline hydrochloride (Zoloft®) to delay the onset of the sensation of emission.
  • serotonin re-uptake inhibitors such as fluoxetine hydrochloride (Prozac®) and sertraline hydrochloride (Zoloft®) to delay the onset of the sensation of emission.
  • the problem of inappropriate timing of sexual response is not limited to the human species, but occurs also in lower mammals as well, for example, in the breeding of valuable commercial animals such as horses, cattle, sheep, swine and the like and domesticated pets such as dogs and cats.
  • U.S. Pat. No. 5,770,606 (Ser. No. 08/546,498) discloses a method of ameliorating erectile dysfunction in a male patient by administration of apomorphine or a salt thereof in an amount sufficient to induce an erection adequate for vaginal penetration, but less than that which induces nausea.
  • FIG. 1 is a linear plot of the mean plasma concentrations of apomorphine following the administration of sub-cutaneous and sublingual doses of apomorphine.
  • the present invention provides a method of ameliorating long-term genital organ tissue damage comprising the chronic administration of a mammalian central nervous system sexual response initiator in an amount less than that required to produce a vasocongestive arousal in said mammal, but sufficient to cause vasodilation in the genitalia.
  • a central nervous system sexual response initiator is administered to a mammal in an acute dose to one or both partners in the period just prior to sexual intercourse, preferably in a dose insufficient to cause effective vasocongestive arousal, but sufficient to increase genital vasodilation to aid in the normalization of the timing of sexual response between the sexual partners.
  • the drug is administered during the period between about two to about one-hundred-twenty minutes prior to sexual relations, preferably in the period between about two and sixty minutes prior to sexual relations.
  • the drug is administered to the male partner.
  • sexual arousal disorder inability to attain the psychic readiness, and/or sustain an erection satisfactory for normal coitus
  • premature ejaculation the drug is administered to the male partner.
  • the drug is administered to the female partner.
  • the drug may also be co-administered with a low dose of androgen to potentiate the effect of the mid-brain pathway mediator drug.
  • testosterone testosterone, dihydrotestos-terone, and dehydroepiandrostenedione, either in their free base forms or in the form of a salt or pro-drug.
  • acute dose or “acute administration” of the drug mean the scheduled administration of the drug to the patient on an as-needed basis.
  • central nervous system sexual response initiator denotes a compound which acts in any of the dopaminergic, serotonergic, oxytocinergic or nitroxidergic mammalian mid-brain pathways to initiate a sexual response.
  • Dopaminergic pathway initiators include apomorphine, bromocriptine, lisuride, methergoline, pergolide, piribidil, and quinpirole.
  • Serotonergic pathway initiators include serotonin receptor agonists such as 1-(2,5-dimethoxy-4-iodophenyl)-1-aminopropane, 5-methoxytryptamine, ⁇ -methyl-5-hydroxytryptamine, 2-methyl-5-hydroxytryptamine, N-acetyl-5-hydroxytryptamine buspirone, and sumatriptin.
  • serotonin receptor agonists such as 1-(2,5-dimethoxy-4-iodophenyl)-1-aminopropane, 5-methoxytryptamine, ⁇ -methyl-5-hydroxytryptamine, 2-methyl-5-hydroxytryptamine, N-acetyl-5-hydroxytryptamine buspirone, and sumatriptin.
  • Oxytocinergic pathway initiators include oxytocin analogues such as isotocin, carbetocin, Lys-conopressin, deaminooxytocin, mesotocin, antocin, glumitocin, aspargitocin, valitocin, asvatocin, phasvatocin, and seritocin.
  • the preferred central nervous system sexual response initiator for use in the methods of the present invention is apomorphine or one of its salts or pro-drug forms.
  • Apomorphine (R)-5,6,6a,7-tetrahydro-6-methyl-(4H)-dibenzo[de,g]quinoline-10,11-diol, is a derivative of morphine obtained by treatment of the latter with concentrated hydrochloric acid (L. Small, et al., J. Org. Chem ., 5: 334 (1940)) or by heating morphine with zinc gchloride (Mayer, Ber., 4: 171 (1871)).
  • the compound has the chemical structure:
  • the compound possesses a basic nitrogen atom at position 6 and is thus capable of existing in the free base form as well as acid addition salt forms.
  • the compound may be administered as the free base or in the form of one of its pharmaceutically acceptable salts or pro-drug derivatives.
  • the term “pharmaceutically acceptable salt” refers to those salts which are within the scope of sound medical judgment, suitable for use in contact with the tissues of humans and lower animals without undue toxicity, irritation, allergic response and the like, and are commensurate with a reasonable benefit/risk ratio.
  • Pharmaceutically acceptable salts are well known in the art. For example, S. M. Berge, et al. describe pharmaceutically acceptable salts in detail in J. Pharmaceutical Sciences , 66: 1-19 (1977). The salts are prepared in situ during the final isolation and purification of the compounds of the invention, or separately by reacting the free base function with a suitable organic acid.
  • salts include adipate, alginate, ascorbate, aspartate, benzenesulfonate, benzoate, bisulfate, borate, butyrate, camphorate, camphorsulfonate, citrate, cyclopentanepropionate, digluconate, dodecylsulfate, ethanesulfonate, formate, fumarate, glucoheptonate, glycerophosphate, gluconate, hemisulfate, heptanoate, hexanoate, hydroiodide, 2-hydroxy-ethanesulfonate, lactobionate, lactate, laurate, lauryl sulfate, malate, maleate, malonate, methanesulfonate, 2-naphthalenesulfonate, nicotinate, nitrate, oleate, oxalate, palmitate, pamoate, pectinate,
  • pro-drug refers to compounds that are rapidly transformed in vivo to yield the parent compound, as for example, by hydrolysis in blood.
  • T. Higuchi and V. Stella provide a thorough discussion of the pro-drug concept in “Pro-drugs as Novel Delivery Systems”, Vol. 14 of the A.C.S. Symposium Series, American Chemical Society (1975).
  • esters useful as pro-drugs for compounds containing carboxyl groups may be found on pages 14-21 of “Bioreversible Carriers in Drug Design: Theory and Application,” edited by E. B. Roche, Pergamon Press (1987).
  • pro-drug ester group refers to any of several ester-forming groups that are hydrolyzed under physiological conditions.
  • Examples of pro-drug ester groups include pivoyloxymethyl, acetoxymethyl, phthalidyl, indanyl and methoxymethyl, as well as other such groups known in the art.
  • normalizing or “normalization” of the timing of sexual response in a human is meant adjusting the time of onset, duration, and likelihood of a sexual response so that these parameters tend toward the normal response for a human under the given circumstances. Normalization of sexual response can include delay of onset of the sensation of emission, delay of ejaculation, and prolongation of the duration of erection in the male and, in the female, increase in the likelihood of clitoral erection, swelling and lubrication.
  • premature ejaculation in the male is meant the sexual dysfunction characterized by persistent or recurrent ejaculation before, upon, or shortly after vaginal penetration. More generally, the term can be defined as ejaculation occurring before the individual wishes.
  • vaginal arousal means, in the male, tumescent penile erection, but insufficient for vaginal penetration and, in the female, clitoral erection and engorgement and swelling of the vagina and labia.
  • effective vasocongestive arousal means, in the male, an erection sufficient for vaginal penetration.
  • apomorphine a representative drug of the class of compounds contemplated by the present invention, for normalizing the timing of sexual response by administration of the drug to males to extend the duration of erection.
  • a multi-center, double-blind, randomized, placebo-controlled, three-armed study was conducted on 370 patients diagnosed with male erectile dysfunction with no major organic component. For each sequence, patients received placebo in one of the treatment periods, and a dose (2 mg, 4 mg, or 6 mg) of apomorphine in the other treatment period. This arrangement resulted in approximately one-third of the patients receiving one of the three apomorphine doses.
  • Table 1 shows the mean durations in minutes of erections for patients receiving a dose (2 mg, 4 mg, or 6 mg) of apomorphine versus placebo in each case for all attempts. If the attempt failed to produce an erection, a value of zero minutes was used in the statistical analysis.
  • the data in Table 1 indicate dose-dependent, statistically significant differences in the mean durations of erections between drug and placebo, with the mean values being lowered by overall by inclusion of zero value data from attempts which did not result in an erection.
  • Table 2 shows the data for only those attempts which did result in an erection.
  • the data in Table 2 also indicate a dose-dependent, statistically significant difference of duration of erection, with a difference of almost 5 minutes between patients taking the 6 mg dose and those receiving placebo.
  • Table 3 presents the median time to erection for patients involved in the study and shows data for all attempts. In those cases where no erection was achieved, a value of 60 minutes time-to-erection was used in the statistical analysis. The data in Table 3 show differences in latency periods between patients receiving apomorphine and those receiving placebo, but the differences probably reflect the inclusion in the data of 60 minute values for those cases in which no erection was achieved.
  • Table 4 shows the data only for patients where an attempt was successful in achieving an erection.
  • the data in Table 4 show that there was no statistically significant difference in the median time-to-erection between patients receiving the drug and those receiving placebo, with a median time-to-erection of about 12 minutes.
  • An “attempt” is defined to be the taking of the study drug and completion by the patient of the appropriate efficacy question on the patient questionnaire. Analysis was done on average duration of erection for each patient during each period. For attempts which did not result in an erection, an duration of zero minutes was used in the statistical analysis. All means, standard errors and P-values are from an ANOVA model, with effects for treatment, period, sequence, and patient within sequence.
  • the plasma concentration curves for all three doses tested show similar profiles and interpolation of the data indicate that plasma apomorphine levels less than about 0.25 ng/mL are sufficient to cause a therapeutic effect.
  • Production of plasma apomorphine concentrations generally ranging between about 0.02 ng/mL and 0.25 ng/mL are preferred for the method of this embodiment of the invention.
  • a dose of apomorphine lower than that required for effective congestive arousal, but sufficient to increase genital blood flow is effective in extending the duration of erection and aids in normalizing the timing of sexual responses between the partners in intercourse.
  • the dose administered to the patient in this embodiment of the invention is generally sufficient to produce mean plasma levels less than about 0.25 ng/mL, preferably in the range of about 0.02 ng/mL to about 0.25 ng/mL. These serum levels translate into doses generally ranging between about 0.02 mg to about 4 mg per dose, depending upon the formulation delivery system.
  • the mode of delivery of the drug is by acute administration; that is, in a dose administered on an as-needed basis in the time period immediately prior to sexual intercourse.
  • the drug is preferably administered in a formulation which rapidly delivers the drug to the system and any method known to the practitioner of the pharmaceutical formulation arts which accomplishes this means may be used.
  • the drug may be rapidly delivered to the system by means of a liquid formulation applied sub-lingually; by a tablet, lozenge, or lollipop held in the mouth and absorbed buccally; by means of a suppository formulation administered intravaginally or rectally; by a powder, gel, or suspension, or an intra-nasal spray formulation.
  • the drug may also be administered in a sterile parenteral formulation by sub-cutaneous or intramuscular route, although sub-lingual, buccal, intra-nasal, and suppository formulations are preferred because of their greater ease of administration and the resulting greater potential for patient acceptance.
  • the drug is administered in the time period immediately prior to sexual intercourse, generally during the period between about 2 minutes and 120 minutes prior to sexual relations, preferably during the period between about 2 minutes and about 60 minutes prior to sexual relations.
  • the drug is administered to the male, optionally with the co-administration of a low dose of androgen.
  • the drug is administered to the female, optionally with co-administration of a low dose of androgen.
  • co-administration is meant 1) the administration of an androgen in a separate dosage form prior to administration of apomorphine, taking into account the particular pharmacokinetic profile of the androgen, and 2) the concomitant administration of the androgen and apomorphine in those cases where the pharmacokinetic profiles of the two drugs are similar.
  • the two drugs may be administered in a single dosage form, or may be administered at the same time in separate dosage forms.
  • Suitable androgens for use in this embodiment of the invention include testosterone, dihydrotestosterone, and dehydroepiandrostenedione with testosterone being particularly preferred.
  • the androgen is given is doses sufficient to produce plasma concentrations of about 1 nmol/L to 200 nmol/L.
  • rat As would be apparent to a person of ordinary skill in the art, it is reasonable to use the rat as a model for the affected vascular systems discussed herein such as, for example, the pudendal and penile vasculature, and to extend such studies to appropriate dosages and therapies for other subjects such as higher mammals and humans.
  • dosage forms for animals such as, for example, rats can be and are widely used directly to establish dosage levels in therapeutic applications in higher mammals, including humans
  • a central nervous system sexual response initiator is administered chronically in a low maintenance dose to prevent, ameliorate, or reverse the damaging effects to the genital organs of extended periods of vasoconstriction.
  • the drug is administered on a repetitive or recurring scheduled basis over a long period of time, for example once daily, once weekly, or by a depot formulation such as a transdermal patch or biodegradeable intramuscular depot formulation.
  • chronic administration or “maintenance dose” of a drug refer to the scheduled repetitive and regular administration of a drug to the patient over a long term.
  • the drug be administered in an amount necessary to produce effective vasocongestive arousal, that is, in the male an erection sufficient for vaginal penetration.
  • a lower dose, sufficient for inducing vasodilation and increased blood flow to the genitalia is sufficient, generally daily doses sufficient to produce mean plasma concentrations of apomorphine of less than about 0.2 ng/mL, preferably in the range of about 0.02 ng/mL to about 0.2 ng/mL.
  • the drug formulation need not be one which delivers the drug rapidly to the system, and typical formulations known in the art such as tablets, pills, lozenges, syrups, elixirs, suspensions and the like, such as those described below may be employed.
  • compositions suitable for administration of the drug of the present invention comprise a therapeutically effective amount of the drug formulated together with one or more pharmaceutically acceptable carriers.
  • pharmaceutically acceptable carrier means a non-toxic, inert solid, semi-solid or liquid filler, diluent, encapsulating material or formulation auxiliary of any type.
  • materials which can serve as pharmaceutically acceptable carriers are sugars such as lactose, glucose and sucrose; starches such as corn starch and potato starch; cellulose and its derivatives such as sodium carboxymethyl cellulose, ethyl cellulose and cellulose acetate; powdered tragacanth; malt; gelatin; talc; excipients such as cocoa butter and suppository waxes; oils such as peanut oil, cottonseed oil; safflower oil; sesame oil; olive oil; corn oil and soybean oil; glycols; such a propylene glycol; esters such as ethyl oleate and ethyl laurate; agar; buffering agents such as magnesium hydroxide and aluminum hydroxide; alginic acid; pyrogen-free water; isotonic saline; Ringer's solution; ethyl alcohol, and phosphate buffer solutions, as well as other non-toxic compatible lubricants such as sodium lauryl sulf
  • compositions of this invention can be administered to humans and other animals orally, rectally, parenterally, intravaginally, topically (as by powders, ointments, or drops), bucally, or as an oral or nasal spray.
  • Liquid dosage forms for oral administration include pharmaceutically acceptable emulsions, microemulsions, solutions, suspensions, syrups and elixirs.
  • the liquid dosage forms may contain inert diluents commonly used in the art such as, for example, water or other solvents, solubilizing agents and emulsifiers such as ethyl alcohol, isopropyl alcohol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene glycol, dimethylformamide, oils (in particular, cottonseed, groundnut, corn, germ, olive, castor, and sesame oils), glycerol, tetrahydrofurfuryl alcohol, polyethylene glycols and fatty acid esters of sorbitan, and mixtures thereof.
  • inert diluents commonly used in the art such as, for example, water or other solvents, solubilizing agents and
  • the oral compositions can also include adjuvants such as wetting agents, emulsifying and suspending agents, sweetening, flavoring, and perfuming agents.
  • adjuvants such as wetting agents, emulsifying and suspending agents, sweetening, flavoring, and perfuming agents.
  • injectable preparations for example, sterile injectable aqueous or oleaginous suspensions may be formulated according to the known art using suitable dispersing or wetting agents and suspending agents.
  • the sterile injectable preparation may also be a sterile injectable solution, suspension or emulsion in a nontoxic parenterally acceptable diluent or solvent, for example, as a solution in 1,3-butanediol.
  • acceptable vehicles and solvents that may be employed are water, Ringer's solution, U.S.P.
  • sterile, fixed oils are conventionally employed as a solvent or suspending medium.
  • any bland fixed oil can be employed including synthetic mono- or diglycerides.
  • fatty acids such as oleic acid are used in the preparation of injectables.
  • the injectable formulations can be sterilized, for example, by filtration through a bacterial-retaining filter, or by incorporating sterilizing agents in the form of sterile solid compositions which can be dissolved or dispersed in sterile water or other sterile injectable medium prior to use.
  • compositions for rectal or vaginal administration are preferably suppositories which can be prepared by mixing the compounds of this invention with suitable non-irritating excipients or carriers such as cocoa butter, polyethylene glycol or a suppository wax which are solid at ambient temperature but liquid at body temperature and therefore melt in the rectum or vaginal cavity and release the active compound.
  • Solid dosage forms for oral administration include capsules, tablets, pills, powders, and granules.
  • the active compound is mixed with at least one inert, pharmaceutically acceptable excipient or carrier such as sodium citrate or dicalcium phosphate and/or a) fillers or extenders such as starches, lactose, sucrose, glucose, mannitol, and silicic acid, b) binders such as, for example, carboxymethylcellulose, alginates, gelatin, polyvinylpyrrolidinone, sucrose, and acacia, c) humectants such as glycerol, d) disintegrating agents such as agar-agar, calcium carbonate, potato or tapioca starch, alginic acid, certain silicates, and sodium carbonate, e) solution retarding agents such as paraffin, f) absorption accelerators such as quaternary ammonium compounds, g) wetting agents such as, for example, cetyl alcohol and gly
  • the dosage form may also comprise buffering agents.
  • Solid compositions of a similar type may also be employed as fillers in soft and hard-filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polyethylene glycols and the like.
  • the solid dosage forms of tablets, dragees, capsules, pills, and granules can be prepared with coatings and shells such as enteric coatings and other coatings well known in the pharmaceutical formulating art. They may optionally contain opacifying agents and can also be of a composition that they release the active ingredient(s) only, or preferentially, in a certain part of the intestinal tract, optionally, in a delayed manner. Examples of embedding compositions which can be used include polymeric substances and waxes.
  • Solid compositions of a similar type may also be employed as fillers in soft and hard-filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polyethylene glycols and the like.
  • the active compounds can also be in micro-encapsulated form with one or more excipients as noted above.
  • the solid dosage forms of tablets, dragees, capsules, pills, and granules can be prepared with coatings and shells such as enteric coatings, release controlling coatings and other coatings well known in the pharmaceutical formulating art.
  • the active compound may be admixed with at least one inert diluent such as sucrose, lactose or starch.
  • Such dosage forms may also comprise, as is normal practice, additional substances other than inert diluents, e.g., tableting lubricants and other tableting aids such a magnesium stearate and microcrystalline cellulose.
  • additional substances other than inert diluents e.g., tableting lubricants and other tableting aids such a magnesium stearate and microcrystalline cellulose.
  • the dosage forms may also comprise buffering agents. They may optionally contain opacifying agents and can also be of a composition that they release the active ingredient(s) only, or preferentially, in a certain part of the intestinal tract, optionally, in a delayed manner.
  • embedding compositions which can be used include polymeric substances and waxes.
  • Dosage forms for topical or transdermal administration of a compound of this invention include ointments, pastes, creams, lotions, gels, powders, solutions, sprays, inhalants or patches.
  • the active component is admixed under sterile conditions with a pharmaceutically acceptable carrier and any needed preservatives or buffers as may be required.
  • Ophthalmic formulation, ear drops, eye ointments, powders and solutions are also contemplated as being within the scope of this invention.
  • the ointments, pastes, creams and gels may contain, in addition to an active compound of this invention, excipients such as animal and vegetable fats, oils, waxes, paraffins, starch, tragacanth, cellulose derivatives, polyethylene glycols, silicones, bentonites, silicic acid, talc and zinc oxide, or mixtures thereof.
  • Powders and sprays can contain, in addition to the compounds of this invention, excipients such as lactose, talc, silicic acid, aluminum hydroxide, calcium silicates and polyamide powder, or mixtures of these substances.
  • Sprays can additionally contain customary propellants such as chlorofluorohydrocarbons.
  • Transdermal patches have the added advantage of providing controlled delivery of a compound to the body.
  • dosage forms can be made by dissolving or dispensing the compound in the proper medium.
  • Absorption enhancers can also be used to increase the flux of the compound across the skin.
  • the rate can be controlled by either providing a rate controlling membrane or by dispersing the compound in a polymer matrix or gel.

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US09/086,630 US6403605B1 (en) 1998-05-29 1998-05-29 Methods for the normalization of sexual response and amelioration of long term genital tissue degradation
ARP990102489A AR019579A1 (es) 1998-05-29 1999-05-27 USO DE UN INICIADOR DE LA RESPUESTA SEXUAL DEL SISTEMA NERVIOSO CENTRAL PARA LA FABRICACIoN DE UNA COMPOSICIoN FARMACÉUTICA PARA LA NORMALIZACIoN DE LA CRONOMETRACIoN DE LA RESPUESTA SEXUAL O PARA LA PROFILAXIS O REDUCCIoN DE LA LESIoN TISULAR GENITAL EN MAMíFEROS
EP05025295A EP1666040A1 (en) 1998-05-29 1999-05-28 Methods for the normalization of sexual response and amelioration of long term genital tissue regradation
CA002331387A CA2331387A1 (en) 1998-05-29 1999-05-28 Methods for the normalization of sexual response and amelioration of long term genital tissue degradation
EP99923347A EP1082118B1 (en) 1998-05-29 1999-05-28 Use of apomorphine in the treatment of premature ejaculation
DE69931487T DE69931487T2 (de) 1998-05-29 1999-05-28 Verwendung von apomorphin zur behandlung der vorzeitigen ejakulation
ES99923347T ES2268869T3 (es) 1998-05-29 1999-05-28 Uso de apomorfina en el tratamiento de eyaculacion precoz.
PCT/CA1999/000508 WO1999062502A2 (en) 1998-05-29 1999-05-28 Methods for the normalization of sexual response and amelioration of long term genital tissue degradation
AT99923347T ATE326969T1 (de) 1998-05-29 1999-05-28 Verwendung von apomorphin zur behandlung der vorzeitigen ejakulation
AU40272/99A AU764009B2 (en) 1998-05-29 1999-05-28 Methods for the normalization of sexual response and amelioration of long term genital tissue degradation
TW088111525A TWI232748B (en) 1998-05-29 1999-07-07 Pharmaceutical compositions for the normalization of sexual response and amelioration of long term genital tissue degradation
HK01106459A HK1037517A1 (en) 1998-05-29 2001-09-12 Use of apomorphine in the treatment of premature ejaculation
US10/147,904 US20030092725A1 (en) 1998-05-29 2002-05-20 Methods for the normalization of sexual response and amelioration of long term genital tissue degradation
US11/474,783 US20060281752A1 (en) 1998-05-29 2006-06-26 Method for the normalization of sexual response and amelioration of long term genital tissue degradation

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US6756407B2 (en) 1994-04-22 2004-06-29 Queen's University At Kingston Method and compositions for the treatment or amelioration of female sexual dysfunction
US20040204439A1 (en) * 2003-04-14 2004-10-14 Staniforth John Nicholas Composition, device, and method for treating sexual dysfunction via inhalation
US20040220205A1 (en) * 2001-06-08 2004-11-04 Hakan Wikstrom Pharmaceutical formulation for the efficient administration of apomorphine, 6ar-(-)-n-propyl-norapomorphine and their derivatives and pro-drugs thereof
US20050181057A1 (en) * 2004-02-13 2005-08-18 Rosenberg Paul K. Vaginal lubricant
US20060178394A1 (en) * 2003-04-14 2006-08-10 Staniforth John N Pharmaceutical compositions comprising apomorphine for pulmonary inhalation
US20080262094A1 (en) * 2007-02-12 2008-10-23 Dmi Biosciences, Inc. Treatment of Comorbid Premature Ejaculation and Erectile Dysfunction
US20080261991A1 (en) * 2007-02-12 2008-10-23 Dmi Biosciences, Inc. Reducing Side Effects of Tramadol

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JP2007537247A (ja) 2004-05-11 2007-12-20 エモーショナル ブレイン ビー．ブイ． 女性性的機能不全の治療における薬学的製剤およびその使用方法
EP1790343A1 (en) 2005-11-11 2007-05-30 Emotional Brain B.V. Pharmaceuticals formulations and uses thereof in the treatment of female sexual dysfunction
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6756407B2 (en) 1994-04-22 2004-06-29 Queen's University At Kingston Method and compositions for the treatment or amelioration of female sexual dysfunction
US20040220205A1 (en) * 2001-06-08 2004-11-04 Hakan Wikstrom Pharmaceutical formulation for the efficient administration of apomorphine, 6ar-(-)-n-propyl-norapomorphine and their derivatives and pro-drugs thereof
US20080145417A1 (en) * 2001-06-08 2008-06-19 Axon Biochemicals B.V. Pharmaceutical formulation for the efficient administration apomorphine, 6ar-(-)-n-propyl-norapomorphine and their derivatives and pro-drugs thereof
US20040204439A1 (en) * 2003-04-14 2004-10-14 Staniforth John Nicholas Composition, device, and method for treating sexual dysfunction via inhalation
US20060178394A1 (en) * 2003-04-14 2006-08-10 Staniforth John N Pharmaceutical compositions comprising apomorphine for pulmonary inhalation
US20050181057A1 (en) * 2004-02-13 2005-08-18 Rosenberg Paul K. Vaginal lubricant
US20080262094A1 (en) * 2007-02-12 2008-10-23 Dmi Biosciences, Inc. Treatment of Comorbid Premature Ejaculation and Erectile Dysfunction
US20080261991A1 (en) * 2007-02-12 2008-10-23 Dmi Biosciences, Inc. Reducing Side Effects of Tramadol

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WO1999062502A2 (en) 1999-12-09
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AU4027299A (en) 1999-12-20
EP1082118A2 (en) 2001-03-14
HK1037517A1 (en) 2002-02-15
EP1666040A1 (en) 2006-06-07
AR019579A1 (es) 2002-02-27
AU764009B2 (en) 2003-08-07
CA2331387A1 (en) 1999-12-09
US20030092725A1 (en) 2003-05-15
US20060281752A1 (en) 2006-12-14
DE69931487T2 (de) 2007-05-03
ATE326969T1 (de) 2006-06-15
WO1999062502A3 (en) 2000-06-15
DE69931487D1 (de) 2006-06-29
TWI232748B (en) 2005-05-21

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